<template>
  <div class="icons">
    <swiper :options="swiperOption">
        <swiper-slide v-for="(page, index) in pages" :key="index"> 
            <div class="icon" v-for="item of page" :key="item.id">
                <div class="icon-img">
                    <img :src='item.imgUrl' class="icon-img-content" />
                </div>
                <p class="icon-desc">{{item.desc}}</p>
            </div>
        </swiper-slide> 
    </swiper>
  </div>
</template>

<script>
  export default {
    name: 'HomeIcons',
    props: {
        iconList : Array
    },
    data() {
        return {
            swiperOption: {
                autoplay: false
            }
        }
    },
    computed:{
        pages (){
            const pages = []
            this.iconList.forEach((item, index) => {
                const page = Math.floor(index / 8)
                if (!pages[page]){
                    pages[page] = []
                }
                pages[page].push(item)
            })

            return pages
        }
    }
  }
</script>

<style lang="stylus" scoped>
    @import "~styles/varibles.styl"
    @import "~styles/mixins.styl"

    .icons >>> .swiper-container
        height: 0
        padding-bottom: 50%
    .icon
        position: relative
        overflow: hidden
        float: left
        width: 25%
        height: 0
        padding-bottom: 25%
        .icon-img
            position: absolute
            top: 0
            left: 0
            right: 0
            bottom: .44rem
            box-sizing: border-box
            padding: .1rem
            .icon-img-content
                display: block
                margin: 0 auto
                height: 100%
        .icon-desc
            position: absolute
            left: 0
            right: 0
            bottom: 0
            height: .44rem
            line-height: .44rem
            text-align: center
            color: $darkTextColor  
            ellipsis()  
</style>